Defor was shot in his living room around 3 a.m., despite pleas by his wife, Ms Kafui Mary Magdalene Tamakloe, to the robbers to wait for her to go upstairs and bring them money if that was their reason for attacking her husband.
The suspects, however, are said to have ignored the request of Ms Tamakloe and killed her husband.
The robbers took his laptop, Ipad and two mobile phones away.
No arrests have been made.
Defor had just completed a law course at the Zenith University College at La in Accra and had been transferred from the Permit Issuing Department of the Ghana Immigration Service to Asikuma in the Eastern Region, before his death.
Defor’s murder brings to three, the number of persons murdered in the Tema Metropolitan Area in the last 40 days.
A staff of Stanbic Bank, Ms Rosemond Nyampon, 32, was found dead in her house at Batsoona on November 21, 2013, while the Akosombo Manager of Zenith Bank, Mr Kwesi Sakyi Prah, 34, was shot and killed in the early hours of Sunday, December 22, 2013.
The Ashaiman Divisional Police Commander, Chief Superintendent of Police, Mr David Eklu, told the Daily Graphic that initial information picked up by the police indicated that five men, one of them armed with a pistol, broke into the apartment of the couple.
He added that Defor was ordered to come to the living room and when he did, he was shot in the right shoulder. The robbers then hit his neck with a hoe until he became unconscious. The assailants fled upon hearing the approach of a police night patrol team, who rushed him to the Tema General Hospital, but he was pronounced dead.
Chief Supt Eklu said one used nine-millimetre bullet and another live one were retrieved from the deceased’s house.
Meanwhile, the Homicide Squad of the Ghana Police Service is investigating the circumstances under which the 36-year-old Immigration Officer was killed.